removed final modifier from aggregate-id

src/main/java/mops/gruppen2/domain/Aggregate.java

@@ -11,11 +11,7 @@ import java.lang.reflect.Method;
 public abstract class Aggregate {
 
     @Getter
-    protected final long id;
+    protected long id;
-
-    protected Aggregate(long id) {
-        this.id = id;
-    }
 
     /**
      * Ruft die spezifische applyEvent-Methode im entsprechenden Aggregat auf.

src/main/java/mops/gruppen2/domain/Group.java

@@ -14,17 +14,19 @@ import java.util.*;
 public class Group extends Aggregate {
     private String title;
     private String description;
-    private List<User> members;
+    private final List<User> members;
-    private Map<User, Role> roles;
+    private final Map<User, Role> roles;
 
-    public Group(CreateGroupEvent event) {
+    public Group() {
-        super(event.getGroup_id());
-        this.title = event.getGroupTitle();
-        this.description = event.getGroupDescription();
         this.members = new ArrayList<>();
         this.roles = new HashMap<>();
     }
 
+    private void applyEvent(CreateGroupEvent event) {
+        title = event.getGroupTitle();
+        description = event.getGroupDescription();
+    }
+
     private void applyEvent(UpdateRoleEvent event) {
         User user;